Progressive Agriculture 89 



weedy averaged only 6 stools, but these weeds 

 were turned under in early July, and from the 

 plowing to the pulling of the sample stools no 

 more weeds had grown, 45 to 49 days after plow- 

 ing the seeding was done, and 43 days after seed- 

 ing or about 90 days after the weeds were plowed 

 under we observe this wide difference in growth 

 and stooling. Is there anything in tillage? 

 Certainly if you know how. 



The weeds in this case had probably grown 

 sufficient to reduce the moisture prior to plowing 

 to the degree that the chemical or bacterial action 

 was largely checked, therefore, less available plant 

 food. Also the moisture was probably reduced 

 to that degree that when the plowing was done the 

 soil did not settle down as closely when the packer 

 was pulled over the field, therefore, more open- 

 ings or spaces were left in the seed and root bed. 



EFFECT OF RAINS ON SUMMER TILLING 



The coarser the mulch over the surface is kept, 

 the less packing of the mulch by the light rains, 

 and the more of the rain water soaks down below. 

 This coarse mulch is best obtained by the tandem 

 disk and if the disk manufacturers would put 

 carrying wheels on these tandem disks, so we 

 could regulate the depth by these wheels and still 

 leave the disk sections set at such angle as would 

 do the best work, a much more complete destruc- 

 tion of the weeds would be possible without cutting 

 so deep as to destroy the seed bed. 



The difficulty of the fine mulch is brought out 

 in Cut No. 9. When the mulch has been so handled 



